Answer:
vaccines inject either weaker strain or dead viruses into the body in order for the immune system to produce antibodies that will help fight off the disease in the future.
hope this helps
Answer:
Vaccines help develop immunity by imitating an infection.
It causes the immune system to produce T- lymphocytes and antibodies.
once the imitation infection goes away, the body is left with a supply of T- lymphocytes, as well as B- lymphocytes that will fight the disease in future.
What do aerobic respiration and anaerobic respiration have in common? Check all the characteristics below that describe ATP
Both begin with glycolysis.
Answer:
Both begin with glycolysis.
What is an stimulus? Define it and give two examples of stimuli for a living being.
Answer:
stimulas is something that causes a reaction exictement or energy e:g it is a shiny object for a baby
describe the benefits and risks of chemotheraphy
The Seven Sisters, seven stars located more than 400 light-years away in the Taurus constellation can be seen here with Venus and another constellation, Orion. The seven stars stay grouped together but seem to move, like the planet Venus. Why do stars seem to move like planets in the night sky?
A)Both the stars and the planets are orbiting around the Earth.
B)The night sky rotates around the planets in our solar system.
C)They seem to move because they are so far away and we cannot see exactly what happens.
D)Stars seem to move because Earth is rotating on its axis; planets do move around the Sun.
Answer:
D)
Explanation:
The main reason as to why stars seem to move like planets in the night sky is because of our Earth. The Earth is rotating on it's axis as well as revolving around the sun at the same time. Therefore turning once around us every 24 hours, which to us makes it seem as though the starts are moving like the rest of our planets do around the sun.
Answer:
The correct answer is D
Explanation:
Just like the starts other astronomical bodies such as the Sun, Moon, and planets look like they are moving from one point in the sky to another.
The simple explanation for this is because because of the the Earth is rotating on its axis. One can achieve same effect by trying to trun round standing at a point. It would appear that the environment is shifting however we are actually the ones doing so.
Cheers!
How does abnormal development take place in man?
Answer:
lol that's a hard question idk
Abnormal development is present when development of a person occurs in an unexpected way and exhibits an unusual pattern of behavior, emotion, or thought. It can occur at any stage of development. Symptoms of abnormal development include a disturbance in behavior, thought, or emotion.
Sheela wants to make a computer model of a land ecosystem. Part of her model simulates the chemical processes of photosynthesis that involve the creation of sugars. Which chemical processes are these?
Answer:
The options to this question are missing, the options are:
A. the light-dependent reactions
B. the light-independent reactions
C. the dark reactions
D. the reactions in the mitochondria
The answer is A
Explanation:
Photosynthesis is a unique phenomenon carried out by cells of autotrophic organisms. Photosynthesis, which generally involves the synthesis of food in form of sugar, occurs in two distinct stages viz: light-dependent and light-independent stages.
These two processes are important to the overall result of the photosynthetic process. However, the light-dependent stage (needs light to occur) produces the energy needed for the synthesis of sugars. The light-dependent stage which takes place in the thylakoid membrane of the CHLOROPLAST synthesizes the NADPH and ATP molecules, which enters the light-independent reactions to be used to power (ATP) and provide electrons (NADPH) needed for the purpose of creating sugar (glucose).
Hence, the part of Sheela's model that is simulating the chemical processes of photosynthesis are the light-dependent reactions.
Answer:
the light-independent reactions
Explanation:
i took the e2020 quiz and it said the B was the correct answer
why are metamorphic rocks denser then igneous rocks
Answer:
Metamorphic rocks are denser than igneous rocks, because of the way they are formed. To explain:
Metamorphic rocks are formed when all types of rocks are compressed under high temperature and pressure. Having been compressed under high pressure, they become denser.
Igneous rocks, however are formed when magma freezes. It could just freeze when it reaches a slightly colder area and is not affected by the pressure at all. Or if it was, it wouldn't be igneous anymore.
Hope this helps
Which of the following is not a natural factor that influences the differential survival of organisms?
Like the atmosphere, the
transports and distributes heat on Earth, helping to regulate climate.
-Ocean
-mountains
-beaches
Answer:
Ocean
Explanation:
Like the atmosphere, the ocean transports and distributes heat on Earth, helping to regulate climate.
The sea is divided geographically into various areas such that each of the area is known as ocean.
Mountains alter wind flow besides creating a rain shadow effect.
Beaches protect people from the high winds and waves of powerful storms.
Why should pets be allowed in school??
Answer:
Pets help students with emotional support on stressful things.
Explanation:
Hope this helps
Genetic engineering involves to achieve desired results.
a. enzyme production
b. modifying products and processes
C changing one organism into another
d introducing traits into organisms
Please select the best answer from the choices provided
Ο Α
B
D
Answer:
The answer is option D
Hope this helps.
The answer is D.Introducing traits into organisms
I did the test and I got it correct :)
The root word terra means “land” or “territory.” Terrestrial planets are the planets closest to the Sun. Why are they are called terrestrial planets? Make your best guess.
Answer:
The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma.
Explanation:
A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars
The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma.
The atmosphere is full of nitrogen gas (N2). But plants cannot use nitrogen in this form. Summarize the roles of bacteria in making nitrogen available to plants and in returning nitrogen to the atmosphere.
Answer:
Explanation:
Since plants cannot make use of nitrogen in this form, they need the help of some organisms which are Bacteria; nitrifying bacteria etc o help in the conversion of this form of nitrogen to that particular form mostly nitrates they can utilize directly.
Thus, most nitrogen is collected from the atmosphere and fixed by microorganisms such as bacteria to form ammonia, nitrites, and nitrates that can be used by plants. These organisms make use of the enzyme nitrogenase to aid in the conversion of atmospheric nitrogen (N2) to ammonia (NH3).
Nitrogen is returned to the atmosphere by denitrification which is the opposite if nitrification and is carried out by denitrifying bacteria. Nitrate is reduced to nitrogen through the production of some intermediate products.
answer what he said
explanation
Which is true for both photosynthesis and cellular respiration? A. They require oxygen as a reactant. B. They require organelles. C. They require light energy from the Sun. D. They require cells to use water.
Answer:
B
Explanation:
Photosynthesis and cellular respiration are opposite processes, so a reactant of one would be the product of the other and vice versa. This means that A, C, and D are false because they don't apply to both processes. B is true because photosynthesis requires chloroplasts and cellular respiration requires mitochondria to occur.
In terms of generating portable electricity which is better a primary cell or a secondary cell? Explain
Answer:
Primary batteries hold more energy than the secondary batteries per size and per weight.
Explanation:
Operational readiness, long storage, and also instant readiness are other benefits. The primary batteries contain little toxic substances and they are considered to be environmentally friendly.
Which describes a feature of the physical properties of all substances? A) Can dissolve in water. B) Can conduct heat and electricity. C) Rearranges atoms to form new substances. D) Does not change the identity of a substance.
Answer: D
Explanation:
The features that give description of the physical properties of substances as regards this question is Does not change the identity of a substance.
physical property of a substance can be regarded as those features The features that give description of the physical properties of substances as regards this question is Does not change the identity of a substance.physical property of a substance can be regarded as those features as well as characteristic of that substance which can undergo observation as well as measurement and after measurement the substance will still retains it's identity.This implies identify doesn't change. Physical properties of a substance can include properties such as ;
color
density
boiling points
hardness
melting.
Therefore, option D is the right answer.
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Why are zebra mussels a problem in the Great Lakes but not in the lakes systems where they came from?
Answer:
B. They have natural predators in the other lakes.
Explanation:
I'm pretty sure that's it, because if it's the lakes they originally came from, then they'd have predators to even their population out.
Which statements correctly describe the digestive system? Select four options.
Food is cut into pieces in the mouth.
Food becomes dry in the mouth.
Proteins are broken down in the stomach.
Carbohydrates are first broken down in the stomach.
Food becomes mostly solid in the large intestine.
Fat is broken down into smaller droplets in the small intestine.What is peristalsis and where does it occur?
Answer:
1,3,5,6
Explanation:
A
DY
P
P:)
That is this molecule called?
Answer:
I am not quite sure about the question
Which of the following are examples of
geographic barriers? Choose two.
Body of water
small stream
Mountain
dirt road
ouTube
Answer: Mountain, small stream
Explanation:
Students recorded their heart rates in several situations. Which of the following data collected would illustrate a feedback response?
A)All students had a constant heart rate while they were at rest.
B)All of the student's heart rates are within a certain range.
C)The heart rates of males were higher on average than females.
D)Every student had an elevated heart rate during exercise.
Answer: Option D.
D)Every student had an elevated heart rate during exercise.
Explanation:
The students have elevated heart rates during exercise. This is because during exercise, muscles need 3 times or four times oxygen when you exert yourself. During exercise, the heart beat faster which make for quicker pulse so that more blood is pump out of you body. The heart beat both stronger and faster to increase cardiac output during exercise.
Cardiac output is stroke volume × heart rate.
Stroke volume is the amount of blood pumped by the heart.when the heart beats.
Heart rate is the number of times heart beats per minutes.
A response is a _______________ to a stimulus. • A stimulus is anything that can cause an individual to respond or react. • Stimuli can be _________ or ____________ .
Answer:
A response is a _reaction to a stimulus. • A stimulus is anything that can cause an individual to respond or react. • Stimuli can be _internal or external.
Explanation:
A change in the cellular make up of an organisms due to response or reaction to a stimulus is called a response. This response can be due to a stimulus inside the body , or due to effect of an external ( stimulus) object on the body-stepping on a sharp pin.
In either cases, the stimulus is receive by the receptors, which transfer the stimulus through the sensory neuron to the inter neuron in the CNS, for the motor neuron to bring an effective response at the effectors.
Which molecule produces the most ATP?
Answer:
ATP is offered to as the 'molecular unit of currency ' of intracellular energy transfer . When consumed in metabolic processes , it converts either to adenosine diphosphate (ADP) or Adenosine monophosphate (AMP)
During DNA replication, GCAT becomes GCTTA. This is an example of _____. deletion
insertion
substitution
copying
Answer:
Insertion and Substitution
Explanation:
During DNA replication, an Insertion is defined as an addition of one or more nucleotide to the DNA strand, during replication process. An obvious example is the process of insertion in microsatellite regions due to the DNA polymerase slipping.
While Substitution in DNA replication process is a term that describes the changing or substition or swapping of one or more nucleotide for another during DNA replication.
For example a change in a single "chemical letter" such as switching an A to a G, is a good example of substitution.
Hence, in this case, both Insertion and Substitution occured as GCAT got additional T chemical letter or nucleotide and which is described as Insertion.
While, there is also a change in position of C and A nucleotides, thereby forming GCTTA, which is termed as Substitution.
I believe its just insertation because another gene or whatever was inserted. haha ik it doesnt really make sense but i think its right
Which is a role of photosystem II in the light reactions?
A. Making NADPH
B. Splitting H20
C. Making ADP
D. Making NADP+
Answer: B. splitting h20
Explanation:cause i said so
An adult organism produces gametes that quickley go through fertilization and form diploid zygotes.The zygotes mature into adults, which lives for many years.Eventually the adults produce gametes and the cycle repeats. What type of life cycle does this organism have?
Answer:
life
Explanation:
These two squirrels live in the same ecosystem. What type of interaction do the images represent?
Indirect competition (I had this question)
Explanation:
Since both squirrels live in the same ecosystem and are competing for the same food, there is competition between the organisms. This competition is indirect because the organisms are not directly fighting over the food.
Indirect competition is a type of interaction that is shown by these two squirrels live in the same ecosystem.
What is ecosystem?In ecology, an ecosystem comprises a unit of structure and function where living things interact with one another and their surroundings. An ecosystem, then, is a series of interactions between species and their surroundings.
The arrangement of abiotic as well as biotic components defines the framework of an ecosystem. This covers how energy is distributed in our surroundings. It also takes into account the climate that prevails in that specific setting. Indirect competition is a type of interaction that is shown by these two squirrels live in the same ecosystem.
Therefore, indirect competition is a type of interaction that is shown by these two squirrels live in the same ecosystem.
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Pleaseeeeee helpppp?!!!!
Identify Structure A
A-chloroplast
B-stroma
C-granum
D-thylakoid
Identify Structure B
A-chloroplast
B-stroma
C-granum
D-thylakoid
Identify Structure C
A-chloroplast
B-stroma
C-granum
D-thylakoid
Identify Structure D
A-chloroplast
B-stroma
C-granum
D-thylakoid
Answer: A
Explanation:
The following structures labelled in the given diagram are:
A- Chloroplast
B- Stroma
C- Granum
D- thylakoid
What is a chloroplast?A chloroplast is a type of membrane-bound organelle known as a plastid that conducts photosynthesis predominantly in plant and algal cells.
Chloroplasts provide energy through photosynthesis and oxygen-release mechanisms, which support plant growth and crop yield. As such, chloroplasts are responsible for the manufacture of active substances such as amino acids, phytohormones, nucleotides, vitamins, lipids, and secondary metabolites
Chloroplasts are oval-shaped and have two membranes: an outer membrane and an inner membrane. Between the outer and inner membrane is the intermembrane gap roughly 10-20 nm wide. The space within the inner membrane is the stroma, the dense fluid within the chloroplast.
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Brown lizard that has invaded some areas of Florida
please write a clear and appropriate question
Answer:
Brown Anole
Explanation:
Hope it helps.
Help please
Global warming is caused by an increase in the level of carbon dioxide gas in the atmosphere. How has this affected the world's oceans?
A) There is an overgrowth of algae.
B) The oceans are warming as a result of the excess carbon dioxide.
C) The oceans are absorbing the excess carbon, causing the oceans to become acidic.
D) The oceans reflect a great deal of the carbon dioxide gas back into the atmosphere.
